Red Laser Boresighter Kits For HuntingBoresighting without firing a bullet. Save ammo and money. All our Laser Boresighters are Pre Calibrated to 1 MOA using a specially designed jig, to ensure precision. Boresighting where firing is prohibited. Fits . 177 to . 50 Calibers The boresighter uses 2x AG13 batteries which are not included due to postal reasons. CNC T6 aluminum, solid construction, superior quality. Adapter, screwdriver, manual included. Caution: Lasers can cause eye damage. Do